Box-covering machine



June 9, 1925.

T. A. FEDERWITZ ET AL BOX COVERING MACHINE Filed April 12 1924 3Sheets-Sheet l INVENTOR iZgATTORNEK June 9, 192,5- 1,541,255

r. A. FEDERWIT; ET AL BOX COVERING MACHINE Filed pril 12. 1924 5Sheets-Sheet 2 FAG-Z- g INVEIYTORS BY v June 9,1925. 1,541,255

T. A. FEDERWITZ ET AL BOX COVERING MACHINE Filed April 12 9 4 sSheets-Sheet 5 all) Fatented done 9, i325.

STAT

Tnnononn A. rnnnawlrz AND WALTER w. BAILEY, or PHILADELPI-HA, PENNSYL-VANIA, ASSIGNORS TO SYLVANIA, A CORPORATION OF s'roxns AND siuirn'COMPANY, or rHILADELPHiA, PENN- PENNSYLVANIA.

BOX-COVERING MACHINE.

Application filed April 12, 1924. Serial No. 705,990.

To all whom it may concern.

it known that we, THEODORE A. FEDER- v-xrrz and t l er/run T. BAILEY,citizens of the United States, residing in the city and county ofPhiladelphia, State of Pennsylvania have invented certain new and usefulimprovements in Box-Covering Machines, of which the following isspeciiiration.

(i invention relates to machines for cove. l stayed or unstayed boxes,and heir rovers, by applying thereto cover lanlrs or wrapper sheets.

in accordance with our invention, the plunger which is connected to andoperates the main form block is of tubular structure, within whichdisposed and relatively movable the auxiliary 1 plunger structure,connected to and actuating the auxiliary form block; and the aforesaidtubular main plunger is disposed and movable within a tubular sleeve orplunger which carries and actuates the stripper mechanism.

Further in accordance with our invention, we dispense with the weightheretofore comy used for rebalancing the main form operating plunger,and apply to that r and the plunger which carries the rig mechanismsprings which permit or speed of ope ation, and which are so no itionedor disposed that they exert on respective plungers forces whose magasare approximately constant throughout the strokes of the plungers.

Further in. accordance with our invention,

the support or column which carries the mechanism for actuating orcontrolling the main auxiliary form blocks and strip per mechanism,whatever their nature or structure, is disposed in effect at a corner ofthe e or support which carries the mechas for actuating thewrapper-applying too or instrumentalities, whereby more room is affordedfor the o aerator or attendant, and, in additionymalres the wrappingmachine unit as a whole utiliaaole with boxand wrapper sheet-deliveringor conveying mechanism.

Further in accordance with our invention, the W0 it-supporting platen iscarried by a plunger whose downward movement is opposed by a springconnected, on the one hand, to the machine support or base and on theother hand, to lever structure connecting with the plunger and of suchconstruction that the force exerted by the spring in opposition to thedownward movement of the platen remains substantially constantthroughout the stroke of the platen.

Further in accordance with our invention, the mechanism for ejecting afinished box from the platen is operated and controlled by meansconnected to and movable in unison with a member which actuates one ofthe wrapper-applying tools or instrumentalities; and more particularlyin accordance with our invention, the ejector mechanism is operated andcontrolled by a slide which carries a wrapper-applying tool and whichisoperated and controlled by a cam which actuate-s and controls one ormore additional wrapper-applyingtools.

Our invention resides in features of arrangement, location, constructionand combination of the character hereinafter described and claimed.

For an illustration of one of the various forms our invention may take,reference is to be had to the accompanying drawings, in which:

Fig. 1 is a side elevational View, partly in vertical section, ofapparatus embodying our invention.

Fig. 2 is a top plan view of structure shown in Fig. 1.

Fig. 3 is a vertical sectional View, parts in elevation, on enlargedscale, of plunger structure shown in Fig. 1.

Fig. l is a horizontal sectional View, partly in plan, taken on, theline 4-4 of Fig. 3.

Fig. 5 is a botton plan view, partly in horizontal section, on the line55 of Fig. 1. r Fig. 6 is a vertical sectional view, parts in sideelevation, on enlarged scale, of the mechanism for controlling andactuating the ejector mechanism.

Referring to Fig. 1, there is shown a boxcovering machine in generalsimilar to that shown in our prior application Serial No. 64l7,012,comprising the base or pedestal l carrying the bearing sleeve 2, uponwhich rotates the worm wheel 8 continuously lriven by the worm 4 drivenby the continuously rotating shaft 5 driven by any suitable source ofpower, not shown. Bearing upon the sleeve 2 is the main cam 6, driven bythe gear 3 through suitable clutch iii ill

mechanism, such as described in the aforesaid application Serial No.647,012, for effecting successive single revolutions of the cam 65.Securedupon the upper end of the cam 6 is the bevel gear 7, with and bywhich mesh and are driven the bevel pinions 8 secured upon and drivingthe shafts 9 having bearings at the upper end of the casing or housing10, which is carried by the pedestal l and which encloses the gear cam 6and gear 7., and which carries the table ll which carriesthe inwardlyand outwardly adj ust able'slide units 12, 12 and the inwardly outwardlyadjustable slide units 13, 13, the latter, as in the aforesaidapplication, having superposed cams operating different. sets ofwrapper-applying tools, while each of the former, as indicated in theaforesaid application and herein, comprises a single cam 14, rotatableupon the shaft 15 driven by the gear 16, which is in turn driven by thegear l7 splined upon the aforesaid shaft 9. The cam 14 is provided withthe three cam slots 18, 19 and 20, in each of which is disposeda camfollower actuat' a tool-carrying slide. In the example illustrated, thecam follower 2i ngages in the cam slot and is secured to and actuatesthe slide 22, which carries the rapper-applying tool 2; inthis instancea roller.

Carried by the housing of the unit 12 is the housing 24:, through whoseopen lower end extends the member 25 secured to and movable with theslide 22, and upon which is adjustable the block 26. Carried by thehousing 24 the shaft 27, upon which is pivoted the lever arm 28, whosemovement in counter-clocl zwise direction, as viewed in Fig. 6, isopposed by the spring29. P voted upon the member 28 is the detent member30, whose notched detent end 31' co-acts with the aforesaid block 26.'.l.lireaded in the housing 24 is the adjustable screw stop 32, withwhich co-acts the downwardly extending arm upon the member 30, whosecounter-clockwise rotation, as viewed in Fig. 6, is opposed by thespring 3%. Pivoted concentrically with the member upon the arm 28, butindependently thereof, and biased only by gravity, is the hook latchmember 35, also eo-acting with the block 26.

The member 28 corresponds in general with the member 135 of the ejectormechanism of the aforesaid prior application 647,012, and'siinilarlycarries a pin 36 engaging in a circumferential groove in the sec 0nd orouter barrel or plunger 37, within which is movable the inner barrel orplunger 38, within which is movable the ejector plunger 39 carrying atits end the boxging. bulfer 40, the ejector mechanism 8, 39, -l0corresponding in construction mode of operation with the ejector nism ofthe aforesaid application. urried by the aforesaid bearing sleeve iember2 is the downwardly extending arcuate guide ll, in which is guided thecylindrical head 42 secured upon the lower end of the plunger rod ortube $3, upon u hose upper end is carried the usual platen Pivoted inthe head 42 at 45 is the link at, pivoted at l to the inner end of thelever 4C8 having the hub 49 pivoted upon the shaft 50 carried in thebracket 51 secured to the pedestal l. Secured to the hub 49 is thedownwardly extending lever arm 52, to which is connected at 53 one endof the helical spring 724-, whose other end is secured to the member 5:)having the adjusting screw 56 carried by the base 1 and utilizable forsuitably tensicning the spring 5 lvlounted upon the table 11, at onecorner thereof, that is, between adjacent units 12 and i3, is the base:37 of the upstanding support or column 58 having at its upper end theoutwardly extending bracket 59 and the inwardly extending bracket 60.

Secured to the inner end of the bracket 60, by bolts 61, is thevertically extending head 32 carryii g at its upper and lower ends thecylindricalbushings 63, in which is vertically slidal'ile the tubularplum (34L. in Whose lower end is secured the bearing block or plugcarrying the rods 66, to which are attached as usual the stripper rods67. Extending tl'irough a vertical slot 68 in the member 62 is the pin69, secured to the plunger 6a and provided with a roller 70 which rollsupon the vertically extending guides 71 carried by the member 62,Pivoted upon the pin 69 is one end of the link 72 pivoted at 73 to thelever arm 7 pivoted to the bracket 59 at 7 and having the rearwardextension 7 6, to which is connected at 77 one end of a helical spring78, whose other end is connected to the column 58, the longitudinal axisof the spring being such with respect to the arm or extension 76 thatthe force exerted by the spring upon the plunger 64 throughout itsmovement is approxin'iately constant. Pivoted to the arm 7 at at 79 isthe downwardly xtending rod 80, pivoted at its lower end to the lever 81pivoted to the casing 1 at 82 and having at its inner end a cam followerengaging in the slot 83 in the main cam 6.

l Vithin the upper end of the tubular member or plunger 64 is secured abearing bushing 84. Vertically Il'lOVfil'ilQ within the bearing membersand 84 is the tubular plui'iger 85, within whose lower end is securedthe plug or block 86, to which is attached the spur 87 secured at itslower end to the main form block 88. The upper end of the tubularplunger 8 is closed by the plug or block 89, with which co-acts theplate 90, to which are secured the upper ends of the plunger rods 91,91, which extend downwardly within the tubular plunger 85 and throughits lower plug 86 and are attached to the auxilit'd lei;

iary form block 92. Secured to but adjustable with respect to the plate90 is the bolt 93, extending freely through the plug 89 and through thehelical spring 94 confined between the lower head of the bolt 93 and theplug 89, the spring 94 acting to cause the auxiliary form block 92 tofollow and engage the main form block 88.

Within the plunger 85 is the block or plug 95, to which is secured thepin 96 extending through the slot 97 in the member 62 and carrying theroller 98 guided by the vertically extending guide members 99. Pivotedupon the pin. 96 is the upper end of an adjustable link 100, pivoted at101 to the lever arm 102 pivoted to the bracket 59 at and having therearwardly extending arm 103, to which is connected one end of thehelical spring 104, whose other end is connected at 105 to the column 58in such position that the longitudinal axis of the spring 104 is sodisposed with respect to the arm 103 that the force exerted by spring104 upon the plunger is substantially constant throughout its movement.

Pivoted to the arm 102 at 106 is the downwardly extending rod 107pivoted at 108 to the lever 109 pivoted to the housing 1 at 110 andcarrying at its inner end a cam follower engaging in the slot 111 of themain cam 6.

The operation of the ejector mechanism is as follows:

For each revolution of the main ram 6 the cam 14 makes one revolution,carrying the slide 22 forwardly and backwardly once for eachbox-covering cycle. As viewed in Fig. 6, the slide 22 is at its extremeforward position, corresponding with the position and time of rest ofthe main cam 6 when unclutched from the worm gear 3. Upon reclutching ofthe cam 6 to the gear 3 the mechanism starts a new cycle, and during thefirst part of the cycle the slide 22 remains in its forward positionindicated. Later it is withdrawn toward the right by the follower 21 inslot 18, thereby carrying the block 26 toward the right, the spring 29having previously drawn the ejector members 37, 38 and 39 toward theright as a unit. To ensure that the ejector mechanism be withdrawnsufliciently far toward the right, the hook latch 35 is provided, theblock 26 engaging it and rotating the lever 28 in clockwise directionuntil the limit of travel of the slide 22 toward the right. In so movingin clockwise direction the pin 36, after the barrel 38 has come to restin the position indicated, because of the engagement of its portion 38with the housing 24, carries the barrel 37 still further to the right,thereby causing the member 39 to be latched to the member 38. .When theblock 26 comes into engagement with the hook latch 35, the spring 34rotates the detent member 30 in clockwise direction, causing its notch31 to engage the left side of the block 26. Thereafter the cam 14 movesthe slide 22 toward the left, carryin the block 26 toward the left andthereby thrusting through the member 30 against the lever 28, carryingit in opposition to spring 29 in counterclockwise direction, in so doingcarrying the pin 36 toward the left until the shoulder 38 on the member38engages the inner wall of the housing 24; thereafter the pin 36 movesthe barrel 3'? still further toward the left, compressing the springtherein until the member 39 is tripped loose from the member 38,whereupon the spring so previously compressed moves the member 39 towardthe left, thereby ejecting a finished box from the platen 44. As theslide 22 approaches the limit of its movement to ward the left, thedetentarm engages the abutment 32, causing withdrawal of the detent 31from the block 26, thereby freeing the lever 28, which is thereuponquickly drawn in clockwise direction, by spring 29, returning theejector mechanism to the pe sition indicated.

Inasmuch as the housing 24 and the ejector mechanism carried thereby ismovable with the slide unit 12, when the latter is moved inwardly toaccommodate smaller boxes or outwardly to accommodate larger boxes to becovered, the ejector mechanism moves therewith and is always in properadjustment for ejecting boxes from the platen 44, thereby avoidingnecessity for structure for adjusting the length of the member 39.

The platen 44, as heretofore commonly the case in machines of this type,moves downwardly and returns upwardly, completing one cycle for eachcycle of operation of the form blocks 88 and 92, that is, for one cycleof the cam 6. Heretofore it has been customary to oppose downwardmovement of the platen 44 by a long helical spring dis posed within itstubular support, with the result that the resistance offered to downwardmovement of the platen 44 increased as its downward movement progressed.By the structure herein described, however, the force opposed by thespring 54 to the platen 44 in its downward movement remains for thepurposes in mind practically constant, the spring 54 being placed undertension or elongated as the platen 44 descends, and when pressure uponthe platen is removed the spring 54 in contracting moves the platen 44upwardly, the upward movement being limited by the stop 48', againstwhich the lever engages. 1

The movements of the tubular plunger 64, the tubular plunger 85, and theplunger rods 91 relative to each other are substantially those wellunderstood in the art in connection with machines of this general typeand such as generally disclosed, in prior patent to Smith No. 691,329 asregards the form J, said prior ap .l he, Glid V However, by the novelstructure l ein described with respect to these plungers, the

bearing bushing 65, ioving downwardly with its supporting plunger 6 1-,forms a lateral sup ort and guide structure tor both the inner p ger andthe plunger rods 91 as they descend. Furthermore, the plunger rods 91,'91 are now disposed within the plunger and this latter is now movablelongitudina ly within the tubular plunger {3 s l urlh-erinore the outerplunger i the Sti'l"iii1' described gun l in bearings, such as lnishings63, 63, where heretofore the plunger corresponding with plunger (34; hascomprised rods guided in hearings, in the present instance the plungericing tubular, and in addition encloses the aforementioned plunger rods91, 91.

Furthermore, the guide plates 71 and 99, co-acting, respectively, withthe pins and 06 through the rollers and 98, respectively, serve tomaintain the plunger-s 6% and 85, and therefore 91, 91, in fixed angularpositions with respect to the member and with resnect to each other,whereby the form blocks 88 and 02 remain in proper and fixed angularrelation with respectto the wrapper-applying tools, including 23, andwith respect to the platen 14:. And similarly, the member 48 and link 46prevent rotation of the plunger 4L3, which carries the platen a l,thereby holding the latter in fixed angular position corresponding withthat of the form blocks 88 and 92.

By utilization of the springs F8 and 10th, for controlling and opposingmovements of the levers 7d and 102 by their operating rods and 107, theinertia of the moving plunger structure as a whole is materiallyreduced, permitting its higher speed operation; and furthermore, themode of operation of the springs 78 and 10a is such as to maintain thecontrolling forces exerted by them substantially constant throughout themove ments of the plunger-s to which they are applied.

As shown in Figs. 2 and e, the brackets 59 and 60, and lever arms 741-and 102, extend diagonally over the table 11 and diagonally with respectto the form blocks 88, 92 and platen l l, thereby affording extra roomfor the attendant or operator in reaching for the box and Wrapper blanksand placing them in register with each other and then upon the formblocks 88 and 92.

Furthermore, by so locating the column or standard 58, the distanceapart between the vertically extending operating rods 80 and 107 isreduced, thereby permitting the use of substantially straight levers 7eand 102,- in lieu of offset levers. Furthermore, by locating thestandard 58 as described, it permits application to the box-wrappingmachine of a lJOX- and wrapper-delivering nechanisin which, as describedin our prior application Serial filo. 608,841, extends over and abovethe slide units 12 and 13 to a position extending beyond the platen 44;and particulady is such location of the standard of advantage when, asdescribed in the aforesaid application, the boxand wrapperd liveringunit or mechanism partalzes of t widths to accom odate different sizesot boxes. viewed i 2, the boxand blank-delivering niechanis i would e2;-tend from below Fig. 2 to a position adjacent the unit 13 at the upperside of Fig. 2.

What we claim is:

1. In a box-covering machine, alongitudinally movable hollow plunger, asecond plunger within and movable longitudinally with respect to saidfirst named plunger, and a form blocl: carried by said second namedplunger.

:2. In a box-ca ying machine, a longitudinally movable hollow plunger, asecond plunger within and movable longitudinally with respect to saidfirst named plunger, a form block carried by said second named plunger,and stripping mechanism carried by said first named plunger.

3. In box-covering machine, a longitudinally movable hollow plunger, :1-second plunger within and movable longitudinally with respect to saidfirst named plunger, a bearing for said second named plunger on saidfirst named plunger adaicent one end thereof, and a form bloc-k carriedby said second named plunger.

4:. in a boil-covering machine, a longitudinally movable hollow plunger,a second plunger within and movable longitudinally with respect to saidfirst named plunger, a bearing for said second named plunger on saidfirst named plunger adjacent one end thereof, a form block carried bysaid second named plunger, and stripper mechanism carried by saidbearing.

5. In a box-covering machine, a longitudillL ly movable hollow plunger,a second plunger within and movable longitudinally with respect to saidfirst named plunger, a form block carried by said second named plunger,a second form block, and plunger structure I attached thereto anddisposed within and movable longitudinally independently of said secondnamed plunger.

6. In a box-covering machine, a longitudinally movable hollow plunger, asecond plunger within and movable longitudinally with respect to saidfirst named plunger, a form block carried by said second named lun er asecond form block plun er structure attached thereto and disposed withinand movable longitudinally independently vsaid first named plunger,

of said second named plunger, and stripper mechanism carried by saidfirst a named plunger.

7. In a box-covering machine, the combination with a longitudinallymovable plunger, of a form block attached thereto, a second form block,and plunger structure attached to said second form block and disposedwithin and movable longitudinally with respect to said first namedplunger.

8. In a box-covering machine, the combination with a longitudinallymovable hollow plunger, of a member carried thereby and disposed in oneend thereof, a form block attached to said member, a second form block,and plunger rods connected to said, second form block and extendingthrough said member into said hollow plunger and movable longitudinallywith respect thereto.

9. In a box-covering machine, the combination with a head, of a hollowplunger movable longitudinally with respect to said head, said headhaving a longitudinally extending slot, a member extending through saidslot and secured to said plunger for moving it, second plunger disposedwithin and movable longitudinally with respect to said first namedplunger, and a form block carried by said second named plunger.

10. In a box-covering machine, the combination with a head, of a. hollowplunger movable longitudinally with respect to said head, said headhaving a longitudinally extending slot, a member extending through saidslot and secured to said plunger {or moving it, a second plungerdisposed within and movable longitudinally with respect to a form blockcarried by said second named plunger, said first named plunger and saidhead having registering longitudinally extending slots, and a memberextending through said slots and secured to said second named plungerfor moving it.

11. In a box-covering machine, the combination with a head having alongitudinally, extending slot, of guide members secured to said head onopposite sides of said slot,a plunger disposed within and movablelongitudinally with respect to said head, a member extending throughsaid slot and secured to said plunger for moving it, and a roller onsaid member co-acting with said guide members.

12. In a box-covering machine, the combination with a head having alongitudinallyextending slot, of a hollow plunger movable longitudinallywith respect to said head and having a slot registering with said firstnamed slot, a second plunger within and movable with respect tosaidlunger, a member extending through said slots and secured to said secondnamed plunger for moving it, guide members on said head on oppositesides of said .slot therein, and a roller on said member co-acting withsaid guide members.

13. In a box-covering machine, the coinbination with a longitudinallymovable plunger, of stripping mechanism carried thereby, a pivoted leverfor actuating said plunger, means for actuating said lever, and a springacting upon said lever in such direction and at such position on saidlever that the force exerted thereon by said spring is approximatelyconstant throughout the movement of said plunger.

14:. In a box-covering machine, the combination with a longitudinallymovable plunger, of a form block carried thereby, a pivoted lever foractuating said plunger, means for actuating said lever, and a springacting upon said lever in such direction and at such position on saidlever that the force exerted thereon by said spring is approximatelyconstant throughout the movement of said plunger.

15. In a box-covering machine, a worksupporting platen, a longitudinallymovable support for said platen, a'spring opposing movement of saidsupport, and a mechanical movement connected between said spring andsaid support, said spring and mechanical movement being so disposed andrelated that the force exerted by said spring upon said support isapproximately constant throughout the longitudinal movement of saidsupport.

16. In a box-covering machine, a Worksupporting platen, a longitudinallymovable support for said platen, a spring opposing movement of saidsupport, a pivoted lever connected to said spring, and a link pivoted tosaid lever and to said support, said spring, lever and link being sodisposed that the force exerted by said spring upon said support inopposition thereto is approxi mately constant throughout thelongitudinal movement of said support.

17. In a box-covering machine, the combination with a work-supportingplaten, of a vertically movable supporting column therefor, a bearingsleeve through which said column is guided, acylindrical head on the endof said column opposite to said platen, an arcuate guide for said headcarried by said bearing sleeve, a base supporting said bearing sleeve, alever pivoted upon said base, a spring connected to said lever and tosaid base, and a link pivoted to said lever and said head.

18. In a box-covering machine, the combination with ajsupport of aplurality of cover-applying mechanisms adjustable on said support inpaths at right angles to each other, an upstanding column disposedbetween'said paths, and torm-block-operating mechanism carried by saidcolumn.

19; In a box-covering machine, the combination with a table, of aplurality ot' slide units carried by said table and adjustable thereonin paths at right angles to each other, coverraprplying tools controlledby saidslide units, an upstanding column disposed adjacent a corner or"said table between said paths, form block plunger structure carried bysaid column, and means carried by said column for actuating said plungerstructure extending over said table at an angle to. said paths.

20. in a box-covering machine, the com bination with an u istandingcolumn, a head carried thereby, form block structure, plunger structurefor operating the same carried by and movable With respect to said head,and means for actuating said plunger structure extending from saidcolumn diagonally or said form bloclrstructure.

21. In a boxcovering machineythe combination with a support, ofWrapper-applying mechanisms carried thereby and adjus t able thereon inpaths substantially at right angles to each other, an upstanding columnd sposed between said paths and having an inwardly (amending bracket atthe upper end thereof, rectangular form block structure, and a membercarried by said column for actuating said form block structure eX-tending ata great angle with respect to said paths and the sides of saidform block structure.

22. In a box-covering machine, an ejector, a cover-applying tool, amember for actuating said tool, and means actuated by said member foractuating and controlling said ejector.

' 23. In a box-covering machine, an ejector, a box-covering tool, areciprocating slide carrying said tool, and means actuated by said slidefor controlling said ejector 24 box-covering machine, an ejector, areciprocating slide, a box-covering tool carried by said slide, a camcontrolling said slide, and means carried by said slide for controllingand actuating said. ejector.

'25. In a boX-covering machine, an ejector, a cam a plurality oftoo1-actuating slides actuated by said cam, and means attached to one ofsaid slides for actuating and controlling said ejector.

'26. In a box-covering machine, a slide unit comprising tool actuatingmembers and means for actuating said members, an ejector carried by saidunit, and means actuated by one of said members for controlling saidejector. w

27. In a :box covering machine, an ejector, a toolactuating slidefamember for actuating and co ntrolling'said ejector, a second mb t rr dby a d S id a d me n effecting a detachable operating connection betweensaidmembersf i 2. a' 'ber cfl 'e iee m c ne, an a tool-actuating slide,a member for actuating and controlling said ejector, a second membercarried by said slide, means etiect ing a detachable operatingconnection between said members, and a spring opposing movement of saidfirst named member by said second named member. .7

29. In a box-covering machine, an ejector, a tool-actuating slide, amember for actuating and controlling said ejector, a second membercarried by said slide, means efiecting a detachable operating connectionbetween said members, and means actuating said detachable connectionafter prodetere mined movement of said first named member to disconnectit from said second named member.

30. In a box-covering machine, an ejector, a tool-actuating slide, amember for actuating and controlling said ejector, a second nber carriedby said slide, means effect- 1 a detachable operating connection between said members, means actuating said detachable connection afterpredetermined movement of said first named member to tilSJHlllGCt ittronisaid second named memand a spring for returning saidfirst namedmember to position from which actua "ed by said second named member.

.51. In a box-covering machine, an ejector, a tool-actuating slide, amember for actuating and controlling said ejector, a second membercarried by said slide. means efi'ecting a detachable operatingconnection between said members for effecting movement said first namedmember, and a member detachably connecting said first and second namedmembers for returning said first named member aiter movement by saiddeta chable conne'ction.

32. in a box-covering machine, an ejector, a pivoted lever for actuatingand controlling said ejector, a tool-actuating slide, a member movab ewith said slide, and a second 7 member pivoted on said leveranddetachably engaged by said firstnan ied member for actuating said leverin one direction.

In box-covering machine. an eotor, pivoted lever for actuating andcontrolling said ejector, a tool-actuating slide, a member movableavithsaid slide, a second mem ber pivoted on said lever and detachably'engaged by said first named member for actuating saidlever in onedirection, an abutment engaged by said second member to disengage itfrom said first named member after predetermined movement ,of saidlever.

34 In a box-covering machine, an ejector, a pivoted lever for actuatingand controlling ejector, a tQOl-operating slide, a member carriedthereby, a detachable connection be we n a d mb r a l v f op rating saidlever in one direction, and a member pivoted on said lever and adaptedto be ngag d by sa first nam d me 0 i turning said lever.

an operating connection between said memhers.

36. In a box-covering machine, a slide unit comprising a housing, a camtherein, a tool-operating slide within said housing and operated by saidcam, a second housing carried by said first named housing, an ejectorcarried by and movable with respect to said second housing, a membercarried by said slide, and mechanism within said second housing actuatedby said member and actuating said ejector.

37. In a box-covering machine, the combination with a support, of a unitadjustable to different positions with respect thereto and comprising atool and means for actuating said tool, and box-ejecting mechanismcarried by said unit.

38. In a box-covering machine, the combination with a support, of a unitadjustable to different positions with respect thereto and comprising atool and a member for actuating said tool, and box-ejecting mechanismcarried by said unit and controlled by said tool-actuating member.

39. In a box-covering machine, the combination with a support, of aplurality of cover-applying units disposed at right angles to each otherand adjustable to different positionson said support, an upstandingcolumn disposed between said units, form-block-operating mechanism carried by said column, and box-ejecting mechanism carried by one of saidunits.

40. In a box-covering machine, the combination with a support, of aplurality of covenapplying units disposed at right angles to each otherand adjustable to different positions on said support, an upstandingcolumn disposed between said units, form-block-operating mechanismcarried by said column, and box-ejecting mechanism carried by one ofsaid units and operable to eject a box past said column.

41. In a box-covering machine, a longitudinally movable tubular plunger,a second plunger within and movable longitudinally with respect. to saidfirst named plunger, and a form block carried by one of said plungers.

42. In a box-covering machine, a longitudinally movable tubular plunger,a second tubular plunger within and movable longitudinally with respectto said first named plunger, a plunger disposed within and movable withrespect to said second named plunger, and a form block carried by one ofsaid plungers.

43. In a box-covering machine, a longitudinally movable tubular plunger,a second tubular plunger within and movable longitudinally with respectto said first named plunger, a plunger disposed within and movable withrespect to said second named plunger, and a form block carried by eachof said second and third named plungers.

44. In a box-covering machine, a longitudinally movable tubular plunger,a second tubular plunger within and movable longitudinally with respectto said first named plunger, a plunger disposed within and movable withrespect to said second named plunger, a form block carried by each ofsaid second and third named plungers, and stripper mechanism carried bysaid first named plunger.

45. In a box-covering machine, a longitudinally movable plunger, asecond plunger movable longitudinally with respect to said first namedplunger to position beyond said first named plunger, a bearing for saidsecond named plunger on said first named plunger adjacent the endthereof beyond which said second named plunger extends, and a form blockcarried by one of said plungers.

46. In a box-covering machine, a longitudinally movable plunger, asecond plunger movable longitudinally with respect tosaid first namedplunger to position beyond said first named plunger, a bearing for saidsecond namedplunger on said first named plunger adjacent the end thereofbeyond which said second named plunger extends, and a form block carriedby said second named plunger.

47. In a box-covering machine, a longitudinally movable plunger, asecond plun ger movable longitudinally with respect tr said first namedplunger to position beyond said first named plunger, a bearing for saidsecond named plunger on said first named plunger adjacentthe end thereofbeyond which said second named plunger extends, a form block carried bysaid second named plunger, and stripping mechanism carried by said firstnamed plunger.

THEODORE A. FEDERIVITZ. WALTER T. BAILEY.

